CN105048765A - Camera module group and voice coil motor thereof - Google Patents
Camera module group and voice coil motor thereof Download PDFInfo
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- CN105048765A CN105048765A CN201510510954.1A CN201510510954A CN105048765A CN 105048765 A CN105048765 A CN 105048765A CN 201510510954 A CN201510510954 A CN 201510510954A CN 105048765 A CN105048765 A CN 105048765A
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- shell fragment
- voice coil
- coil motor
- pedestal
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000012634 fragment Substances 0.000 claims description 67
- 238000012856 packing Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
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- Studio Devices (AREA)
- Lens Barrels (AREA)
Abstract
The invention relates to a voice coil motor comprising a pedestal, a lower spring plate, two conductive terminals, a carrier, a coil, an upper spring plate shell and a plurality of magnets. Two conductive terminals are arranged and one end of the coil is electrically connected with one conductive terminal and the other end is electrically connected with the other conductive terminal, so that the traditional way of direction welding of the lower spring plate with the two ends of the coil in the prior art is changed. The two conductive terminals are arranged on the upper surface of the pedestal at an interval and extend out of the lower surface of the pedestal. The two ends of the coil are led to the lower surface of the pedestal by the conductive terminals and thus are located outside the voice coil motor; and the two ends of the coil are electrically connected with the circuit board by the two conductive terminals. Therefore, the short-circuit phenomenon can be effectively prevented based on the structure. Meanwhile, a camera module group using the voice coil motor is also provided.
Description
Technical field
The present invention relates to camera technical field, particularly relate to a kind of camera module and voice coil motor thereof.
Background technology
Voice coil motor (VCM, VoiceCoilMotor) is the one of motor.Because principle and loud speaker similar, so be voice coil motor, there is high frequency sound, high-precision feature.Its cardinal principle is in a permanent-magnetic field, by changing the direct current size of motor interior loop, carrys out the size of Ampere force suffered by control coil, thus drives camera lens module to move up and down.Mobile phone camera uses VCM to realize automatic focusing function widely, can the position of adjustable lens by VCM, presents image clearly.
The current delivery mode of traditional voice coil motor is that coil two ends are directly soldered to the relatively independent two parts of lower shell fragment respectively, and lower shell fragment is electrically connected to circuit board, again by circuit board to coil power supply.But be directly soldered to two parts of lower shell fragment due to the two ends of coil, easily cause short circuit.
Summary of the invention
Based on this, be necessary for above-mentioned technical problem, a kind of camera module and the voice coil motor thereof that effectively can prevent short circuit phenomenon are provided.
A kind of voice coil motor, comprising:
Pedestal, offers the first light hole;
Lower shell fragment, is arranged at the upper surface of described pedestal, and described lower shell fragment offers the second light hole;
Two conducting terminals, be arranged at intervals at the upper surface of described pedestal and stretch out in the lower surface of described pedestal, two described conducting terminals are respectively used to be electrically connected with the circuit board of outside;
Carrier, is arranged on described pedestal, described carrier offers the 3rd light hole;
Coil, is set around the outer peripheral edges of described carrier, and one end of described coil is connected to wherein conducting terminal described in, and the other end of described coil is connected to wherein conducting terminal described in another;
Upper shell fragment, offers the 4th light hole, and the two ends of described carrier are fastened on the madial wall of the madial wall of the second light hole of described lower shell fragment and the 4th light hole of described upper shell fragment respectively;
Shell, comprises sidewall and roof, and described shell and described pedestal form a receiving space, and described roof offers five-way unthreaded hole; And
Multiple magnet, is arranged on the inner surface of the sidewall of described shell respectively, and multiple described magnet and described coil are oppositely arranged, and wherein said carrier, coil, upper shell fragment, lower shell fragment and multiple magnet are all contained in described receiving space.
Wherein in an embodiment, the upper surface of described pedestal is provided with reference column, and described lower shell fragment offers the first location hole, and described lower shell fragment is arranged on described reference column by described first location hole.
Wherein in an embodiment, described lower shell fragment is made up of two relatively independent half shell fragments.
Wherein in an embodiment, one end of two described conducting terminals is provided with fixed head, described fixed head offers the second location hole, and described conducting terminal is arranged on described reference column by the second location hole.
Wherein in an embodiment, described lower shell fragment is the square sheet shape structure that middle part offers the second light hole.
Wherein in an embodiment, the upper surface of described pedestal and the intersection of side surface are provided with first step, and one end of each conducting terminal is provided with the second step matched with described first step.
Wherein in an embodiment, the linear elasticity arm being bent into multistage that described upper shell fragment and described lower shell fragment comprise housing and extend internally from housing.
Wherein in an embodiment, be also provided with carrying tablet, described carrying tablet is fastened in the outer peripheral edges of described carrier and is positioned at the below of described coil.
Wherein in an embodiment, also comprise packing ring, described packing ring is contained in described shell, and is positioned at the top of described upper shell fragment.
A kind of camera module, comprising:
Circuit board;
Support, is arranged on described circuit board bottom it, described support and described circuit board form a cavity, and described cavity runs through the upper surface of described support;
Image sensor, is arranged on described circuit board, and is contained in described cavity;
Filter, is arranged on described support, and is positioned at above described image sensor;
Voice coil motor as described in above any one, it is arranged on described support, and described coil is electrically connected with described circuit board by described conducting terminal; And
Camera lens module, is arranged in described voice coil motor, and described voice coil motor moves along its optical axis direction for driving described camera lens module.
Above-mentioned camera module and voice coil motor thereof at least have the following advantages:
Two conducting terminals are set, one end of coil is electrically connected with one of them conducting terminal, the other end is electrically connected with another conducting terminal, change the mode that in conventional art, lower shell fragment directly welds with the two ends of coil, two conducting terminals are arranged at intervals at the upper surface of pedestal and stretch out in the lower surface of pedestal, the two ends of coil are guided to the lower surface of pedestal by conducting terminal, the i.e. outside of voice coil motor, the two ends of coil are electrically connected with circuit board respectively by two conducting terminals, and such structure effectively can prevent short circuit phenomenon.
Accompanying drawing explanation
Fig. 1 is the decomposing schematic representation of the voice coil motor in an execution mode;
Fig. 2 is the decomposing schematic representation of the voice coil motor in another execution mode.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.Set forth a lot of detail in the following description so that fully understand the present invention.But the present invention can be much different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar improvement when intension of the present invention, therefore the present invention is by the restriction of following public concrete enforcement.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement just for illustrative purposes, do not represent it is unique execution mode.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe specific embodiment, is not intended to be restriction the present invention.Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this specification is recorded.
Camera module in one execution mode comprises circuit board, support, image sensor, filter, voice coil motor 100 and camera lens module.Circuit board can be flexible PCB, hard circuit board or rigid-flexible circuit board.When circuit board is flexible PCB, a stiffener can be set, increase the intensity of flexible PCB.
The bottom of support is arranged on circuit board.Support and circuit board form a cavity, and cavity runs through the upper surface of support, enter in cavity through support to enable extraneous light.Filter is arranged on support, and is positioned at above image sensor, and image sensor is arranged on circuit board, and is contained in cavity, and extraneous light to be entered in cavity by the through part of the upper surface of support and arrives in image sensor after mating plate after filtration.Filter can be cutoff filter.
Referring to Fig. 1, is the voice coil motor 100 in an execution mode.Camera lens module (not shown) is arranged in voice coil motor 100, and voice coil motor 100 is arranged on support, for driving camera lens module (not shown) to move along its optical axis direction, to realize the object of focusing.
Specific in present embodiment, voice coil motor 100 comprises pedestal 110, lower shell fragment 120, two conducting terminals 130, carrier 140, carrying tablet 150, coil 160, upper shell fragment 170, packing ring 180, shell 191 and multiple magnet 192.Particularly, pedestal 110 is arranged on support.Pedestal 110 offers the first light hole 110a, the first light hole 110a is corresponding with the cavity position that support and circuit board are formed.Pedestal 110 is roughly rectangular.The upper surface of pedestal 110 is provided with reference column 111, the quantity of reference column 111 can be four, and four reference columns 111 are close to four corners of pedestal 110 respectively.
Lower shell fragment 120 is arranged at the upper surface of pedestal 110.Particularly, lower shell fragment 120 offers the first location hole 120a, is arranged on reference column 111 makes lower shell fragment 120 be positioned at the upper surface of pedestal 110 by the first location hole 120a.Lower shell fragment 120 offers the second light hole 120b, the second light hole 120b can be manhole.In the present embodiment, lower shell fragment 120 is made up of two relatively independent half shell fragments, and two relatively independent half shell fragment compositions have the square sheet shape structure of manhole.The linear elasticity arm being bent into multistage that lower shell fragment 120 comprises housing and extends internally from housing.The linear elasticity arm of multistage is all formed at its four drift angle places.
Two conducting terminals 130 are arranged at intervals at the upper surface of pedestal 110 and stretch out in the lower surface of pedestal 110, and two conducting terminals 130 can be electrically connected with circuit board respectively.Particularly, two conducting terminals 130 are arranged at two corners adjacent on pedestal 110 respectively.
Specific in present embodiment, one end of two conducting terminals 130 is provided with fixed head 131, fixed head 131 offers the second location hole 132, and conducting terminal 130 is arranged on reference column 111 by the second location hole 132.The other end of two conducting terminals 130 is elongated end, elongated end is vertical with fixed head 131, and elongated end extends to the lower surface direction of pedestal 110 and exceeds the plane at the lower surface place of pedestal 110, particularly, elongated end is perpendicular to the upper and lower surface of pedestal 110, and two elongated ends and circuit board are electrically connected.
Certainly, refer to Fig. 2, in other embodiments, lower shell fragment 120 can also be a closed square sheet shape structure, offers the second light hole 120b in the middle part of it.Second light hole 120b can be manhole.Now, the upper surface of pedestal 110 and the intersection of side surface are provided with first step 112, and one end of each conducting terminal 130 is provided with the second step 231 matched with first step.In this embodiment, conducting terminal 130 does not contact with enclosed lower shell fragment 120.The linear elasticity arm being bent into multistage that lower shell fragment 120 comprises housing and extends internally from housing.The linear elasticity arm of multistage is all formed at its four drift angle places.
Please continue to refer to Fig. 1, carrier 140 is arranged on pedestal 110, carrier 140 offers the 3rd light hole (not shown).Particularly, the madial wall of the 3rd light hole can arrange internal thread, and camera lens module is provided with external screw thread, and camera lens module is arranged on carrier 140 by the mode mutually screwed togather by internal thread and external screw thread.Therefore, camera lens module can move with the movement of carrier 140.
Coil 160 is set around the outer peripheral edges of carrier 140, and one end of coil 160 is electrically connected with a wherein conducting terminal 130, and the other end is electrically connected with another conducting terminal 130.Particularly, coil 160 can be that a wire is coiled into, and having two can as two line end of welding contact point, and the two ends of coil 160 are welded on two conducting terminals 130 respectively.Coil 160 is drawn outside pedestal 110 by two conducting terminals 130, is therefore conducive to reducing short circuit phenomenon.Two conducting terminals 130 are electrically connected with circuit board, and circuit board is powered for coil 160 by conducting terminal 130.
The outer peripheral edges of carrier 140 have also held carrying tablet 150, and carrying tablet 150 is positioned at the below of coil 160, for playing carrying effect to coil 160, prevent coil 160 from down dropping.
Upper shell fragment 170 offers the 4th light hole 170a, and the two ends of carrier 140 are fastened on the madial wall of the madial wall of the second light hole 120b of lower shell fragment 120 and the 4th light hole 170a of upper shell fragment 170 respectively.Carrier 140 can move up and down under the driving of Ampere force, and now, upper shell fragment 170 and lower shell fragment 120 is stressed is stretched, after Ampere force disappears, carrier 140 is returned to initial position with lower shell fragment 120 by upper shell fragment 170.Particularly, upper shell fragment 170 is square sheet shape structure, and the 4th light hole 170a is opened in the middle part of shell fragment 170, and the 4th light hole 170a can be manhole.The linear elasticity arm being bent into multistage that upper shell fragment 170 comprises housing and extends internally from housing, when carrier 140 moves, the elastic arm of upper shell fragment 170 and lower shell fragment 120 is stretched, and after Ampere force disappears, carrier 140 is returned to initial position with the elastic arm of lower shell fragment 120 by upper shell fragment 170.
Shell 191 is the lower open architecture of hollow, and shell 191 and pedestal 110 form a receiving space.Shell 191 comprises sidewall and roof, and the upper surface of shell 191 roof offers five-way unthreaded hole 191a, and five-way unthreaded hole 191a can be manhole.Shell 191 is made of metal, and is roughly rectangular box-shaped structure.First light hole 110a, the second light hole 120b, the 3rd light hole, the 4th light hole 170a and five-way unthreaded hole 191a can coaxially be arranged.
Multiple magnet 192 are arranged on the inner surface of the sidewall of shell 191 respectively, are oppositely arranged respectively with coil 160.Particularly, four drift angle places that four magnet, 192, four magnet 192 are arranged at shell 191 are respectively comprised.Carrier 140, coil 160, upper shell fragment 170, lower shell fragment 120, carrying tablet 150, packing ring 180 and multiple magnet 192 are all contained in receiving space.
Packing ring 180 is contained in shell 191, and is positioned at the top of shell fragment 170, therefore goes up shell fragment 170 and does not directly contact with the end face of shell 191, and arranging packing ring 180 can increase upper shell fragment 170 and shell 191 cushion effect.Packing ring 180 can be made up of synthetic resin material.
Above-mentioned camera module and voice coil motor 100 thereof at least have the following advantages:
Two conducting terminals 130 are set, one end of coil 160 is directly electrically connected with one of them conducting terminal 130, the other end is electrically connected with another conducting terminal 130, change the mode that conventional art coil 60 is electrically connected with conducting terminal 130 by lower shell fragment 120, two conducting terminals 130 are arranged at intervals at the upper surface of pedestal 110 and stretch out in the lower surface of pedestal 110, the two ends of coil 160 are guided to the lower surface of pedestal 110 by conducting terminal 130, the i.e. outside of voice coil motor 100, the two ends of coil 160 are electrically connected with circuit board respectively by two conducting terminals 130, such structure effectively can prevent short circuit phenomenon.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a voice coil motor, is characterized in that, comprising:
Pedestal, offers the first light hole;
Lower shell fragment, is arranged at the upper surface of described pedestal, and described lower shell fragment offers the second light hole;
Two conducting terminals, be arranged at intervals at the upper surface of described pedestal and stretch out in the lower surface of described pedestal, two described conducting terminals are respectively used to be electrically connected with the circuit board of outside;
Carrier, is arranged on described pedestal, described carrier offers the 3rd light hole;
Coil, is set around the outer peripheral edges of described carrier, and one end of described coil is connected to wherein conducting terminal described in, and the other end of described coil is connected to wherein conducting terminal described in another;
Upper shell fragment, offers the 4th light hole, and the two ends of described carrier are fastened on the madial wall of the madial wall of the second light hole of described lower shell fragment and the 4th light hole of described upper shell fragment respectively;
Shell, comprises sidewall and roof, and described shell and described pedestal form a receiving space, and described roof offers five-way unthreaded hole; And
Multiple magnet, is arranged on the inner surface of the sidewall of described shell respectively, and multiple described magnet and described coil are oppositely arranged, and wherein said carrier, coil, upper shell fragment, lower shell fragment and multiple magnet are all contained in described receiving space.
2. voice coil motor according to claim 1, is characterized in that, the upper surface of described pedestal is provided with reference column, and described lower shell fragment offers the first location hole, and described lower shell fragment is arranged on described reference column by described first location hole.
3. voice coil motor according to claim 2, is characterized in that, described lower shell fragment is made up of two relatively independent half shell fragments.
4. voice coil motor according to claim 3, is characterized in that, one end of two described conducting terminals is provided with fixed head, described fixed head offers the second location hole, and described conducting terminal is arranged on described reference column by the second location hole.
5. voice coil motor according to claim 2, is characterized in that, described lower shell fragment is the closed square sheet shape structure that middle part offers the second light hole.
6. voice coil motor according to claim 5, is characterized in that, the upper surface of described pedestal and the intersection of side surface are provided with first step, and one end of each conducting terminal is provided with the second step matched with described first step.
7. voice coil motor according to claim 1, is characterized in that, the linear elasticity arm being bent into multistage that described upper shell fragment and described lower shell fragment comprise housing and extend internally from housing.
8. voice coil motor according to claim 1, is characterized in that, is also provided with carrying tablet, and described carrying tablet is fastened in the outer peripheral edges of described carrier and is positioned at the below of described coil.
9. voice coil motor according to claim 1, is characterized in that, also comprises packing ring, and described packing ring is contained in described shell, and is positioned at the top of described upper shell fragment.
10. a camera module, is characterized in that, comprising:
Circuit board;
Support, is arranged on described circuit board bottom it, described support and described circuit board form a cavity, and described cavity runs through the upper surface of described support;
Image sensor, is arranged on described circuit board, and is contained in described cavity;
Filter, is arranged on described support, and is positioned at above described image sensor;
Voice coil motor as in one of claimed in any of claims 1 to 9, it is arranged on described support, and described coil is electrically connected with described circuit board by described conducting terminal; And
Camera lens module, is arranged in described voice coil motor, and described voice coil motor moves along its optical axis direction for driving described camera lens module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510510954.1A CN105048765A (en) | 2015-08-19 | 2015-08-19 | Camera module group and voice coil motor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510510954.1A CN105048765A (en) | 2015-08-19 | 2015-08-19 | Camera module group and voice coil motor thereof |
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| CN105048765A true CN105048765A (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510510954.1A Pending CN105048765A (en) | 2015-08-19 | 2015-08-19 | Camera module group and voice coil motor thereof |
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Cited By (5)
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| CN109491039A (en) * | 2018-11-12 | 2019-03-19 | 重庆睿恩光电子有限责任公司 | Lens driving apparatus, camera and mobile device |
| CN109752814A (en) * | 2017-11-02 | 2019-05-14 | 大阳科技股份有限公司 | Lens driving apparatus, camera module and electronic device |
| TWI712249B (en) * | 2018-08-07 | 2020-12-01 | 鴻海精密工業股份有限公司 | Voice coil motor and its fabrication method |
| CN114303307A (en) * | 2020-06-23 | 2022-04-08 | 庆鼎精密电子（淮安）有限公司 | Camera module and preparation method thereof |
| TWI765947B (en) * | 2017-08-15 | 2022-06-01 | 晶幣科技股份有限公司 | Image capturing module having multiple lenses |
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| Publication number | Priority date | Publication date | Assignee | Title |
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